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CA 77 fuel line...need help

Fuel System: Gas (Petrol) tanks, Carburators
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305
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CA 77 fuel line...need help

Post by 305 » Thu Dec 12, 2019 6:02 pm

hello! it's been a while since i've been here....it's been a busy few years

i decided to do some work on my `66 honda 305 dream that i have owned since 1974 and has been sitting for about 8-10 years. the fuel lines are hard as a rock and brittle and need to be replaced. i thought i'd grab some 3/16 or 1/4 rubber fuel line , but nope.....they appear to be about 9/32 on the tank crossover and 7/32 from the fuel valve to the carb....what do you guys use?

also...the fuel valve seams to move very easily and i suspect it may need rebuilding...where is the best place to get a kit?

thanks for your help.......greg
when small men begin to cast long shadows it's a sure sign the sun is setting

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G-Man
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Re: CA 77 fuel line...need help

Post by G-Man » Fri Dec 13, 2019 11:05 am

Welcome back!

The fuel line should be flexible enough to accommodate the diference between 9/32" and 1/4" if that's all you can get.

Clearly Honda used metric hose but that probably hasn't made it to the USA in the 50 years since the bike was built :-) Just my little joke, sorry..........

As for a tap rebuild kit, you can try ebay or go to David Silver Spares.

https://www.davidsilverspares.com/C77-D ... rt_308929/

DSS also sells genuine Honda fuel line in 1m (39 inch) lengths.....

https://www.davidsilverspares.co.uk/tubes

G
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Seadog
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Re: CA 77 fuel line...need help

Post by Seadog » Fri Dec 13, 2019 11:37 am

You can get 5mm fuel line on Amazon. For example: https://www.amazon.com/JRL-Inner-Diamet ... 818&sr=8-8

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Tim Allman
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Re: CA 77 fuel line...need help

Post by Tim Allman » Fri Dec 13, 2019 1:01 pm

The last time I needed fuel hose I went to the local lawn mower etc. repair shop. What they had was no doubt inch sized but it fit well and without measuring is indistinguishable from metric hose. I just took a carburettor with me and asked for tubing which fit. I walked out with about 1/2 m for a couple of dollars.

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